Cow dung is appropriately used as

Find the odd one out: Cow dung, fish pieces, Rotten raisins, Resin.

Cattle dung is commonly used for biogas production because (a) Cattle dung is a rich source of methanogens (b) It has large amount of cellulose as cattle are herbivores (c) It is easily available in large quantities in rural areas

The interior of a cow-dung piece kept for a few days is quite warm.This is mostly because

Fungi growing on dung is called as …………….